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Free VOIP / SIP phone (softphone) for Windows. Use your PC as a phone. Works with popular VOIP providers and SIP PBX's (including 3CX Phone System). The interface is easy to use and similar to that of popular Smartphones. 3CXPhone is compact and easy to install across a network. Features include Call Transfer, Call Recording, Hold, Headset support, Call History. Full version, not a lite version! Free download from homepage Features: * Smartphone-like interface * Support for multiple SIP profiles * Record calls to file * Displays caller ID * Shows personal call log/history * Incoming calls - identify, accept, reject or ignore * Put calls on hold (HOLD) * Transfer calls with the click of a button (ECT) * Diverts calls to voice mail * Message Waiting Indication (MWI) * Keypad with intuitive interface * Support G.711 (A-Law and u-Law), GSM, iLBC and Speex codecs * STUN support for NAT/firewall traversal * Installation provided as MSI for easy deployment * Integrated phone book (allows you to assign caller ID to a name) 3CX VOIP Phone for Windows also functions as a client for 3CX Phone System for Windows, a software-based VOIP PBX that completely replaces a traditional proprietary phone system. More information on homepage